South Africa's Cradle of Humankind, an expanse of farmland and rolling hills outside Johannesburg, has already unlocked some of the great mysteries of evolution. The unveiling of a near-complete fossil hominid skeleton dating back 3.67 million years will only solidify the importance of the region.

From Colombia to South Africa, France to India, governments around the globe are exploring whether taxes on sugar-sweetened beverages might curb obesity rates. Do these fines actually work to prevent people from choosing sweet drinks?

While Nelson Mandela, Oliver Tambo, and Desmond Tutu are rightly venerated for their role in opposing and ending white minority rule in South Africa, another leader of the liberation years has been remarkably overlooked: Bantu Steven Biko, who led the enormously influential Black Consciousness Movement. Four decades after his death in police custody on September 12 1977, he deserves to be recognized as one of the towering heroes of the anti-apartheid struggle.